Description of Business and Accounting Policies - Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash and cash equivalents	$ 460.7	$ 7.8	$ 7.7
Cash and cash equivalents included in Current assets held for sale from discontinued operations	0.0	1.3	1.7
Restricted cash included in Other noncurrent assets	5.1	3.4	3.5
Cash, cash equivalents and restricted cash per Consolidated Statements of Cash Flows	$ 465.8	$ 12.5	$ 12.9	$ 6.1